In the wake of controversy surrounding the removal of a free OnLive voucher from boxed PC copies of Deus Ex: Human Revolution, GameStop is offering affected customers a $50 store gift card and a coupon for a free used game with the purchase of two others.

"We regret the events surrounding this title release and that our customers were put in the middle of this issue between GameStop and Square Enix, the publisher of this game," GameStop said in an e-mail message to customers (as reported by Joystiq).

"And for this, we are truly sorry," the company added.

GameStop admitted to ordering the removal earlier this week, saying the coupon for a free OnLive copy of Human Revolution was included in the boxes without the retailer's knowledge.

"We pulled the coupons because, like all retailers, we prefer not to promote our competitors and their competing offerings and services in our stores," the company said in an earlier statement.

GameStop does currently offer a downloadable edition of Deus Ex: Human Revolution through the Impulse digital download service, which it recently acquired from Stardock.

Square Enix America said earlier this week it "respects the right of GameStop to have final say over the contents of products it sells and to adjust them where they see fit in accordance with their policies."